<!DOCTYPE html>
<html lang="en">

<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>不规则图案</title>
    <style>
        /*Patterns Gallery*/
        div {
            width: 100px;
            height: 200px;
            display: inline-block;
            padding-right: 20px;
            border: 1px solid black;
        }

        .block {
            width: 100%;
            display: block;
            border: 1px solid red;
            padding: 10px;
            margin: 15px;
        }

        .Microbial-Mat {
            background:
                radial-gradient(circle at 0% 50%, rgba(96, 16, 48, 0) 9px, #613 10px, rgba(96, 16, 48, 0) 11px) 0px 10px,
                radial-gradient(at 100% 100%, rgba(96, 16, 48, 0) 9px, #613 10px, rgba(96, 16, 48, 0) 11px),
                #8a3;
            background-size: 20px 20px;
        }

        .Stairs {
            background:
                linear-gradient(63deg, #999 23%, transparent 23%) 7px 0,
                linear-gradient(63deg, transparent 74%, #999 78%),
                linear-gradient(63deg, transparent 34%, #999 38%, #999 58%, transparent 62%),
                #444;
            background-size: 16px 48px;
        }

        .circle {
            border-radius: 50%;
        }

        .diamond>div {
            width: 100px;
            height: 100px;
            transform: skewX(-45deg);
            background: #b4a078;
            position: relative;
            margin: 5px 0 0 90px;
        }

        .diamond>div:nth-of-type(2) {
            transform: rotate(45deg)
        }

        .diamond>div:nth-of-type(3) {
            clip-path: polygon(50% 0, 100% 50%, 50% 100%, 0 50%);
            transition: 1s clip-path;
        }

        .diamond>div:nth-of-type(3):hover {
            clip-path: polygon(0 0, 100% 0, 100% 100%, 0 100%);
        }
    </style>
</head>

<body>
    <div class="block">
        <div class="Microbial-Mat"></div>
        <div class="Stairs"></div>
        <div class="circle"></div>
    </div>
    <div class="block diamond">
        <div></div>
        <div></div>
        <div></div>
    </div>

</body>

</html>